G'day all,
I've just installed a SuperMicro H8DME-2 MB, this has only physical PCIe x8 slots. This means PCIe x16 cards will NOT physically fit in these slots!
Can anyone recommend a currently available x8 graphics card for this configuration? Minimum specs are simply 512Mb VRAM, and at least 2 x DVI outs (analogue [VGA] outs are also fine).
PLEASE NOTE: This is NOT a physical PCIe x16 slot with only 8 lanes connected, nor is it an AGP slot. Please don't recommend any cutting, chopping, grinding, gluing, or x16 adapter cards - I'm already using an Orbit x16-x8 adapter with my old Radeon X1600 card, and it's too slow and no longer has active driver development.
I would also be interested in PCI or PCIX graphics, as long as they meet the 512Mb/2xDVI minimum specs.
I've tried to buy Jaton PCI products here in Australia, but that's like buying chooks' teeth, with only one importer and they resell only to distributors - and they haven't sold a Jaton card in nearly a year.
I do realise there's a 5-8% performance advantage to x16 as opposed to x8, but that wasn't enough (before I started seriously looking for an x8 graphics solution, that is ) to offset the 12 CPU cores and 128G supported by the MB... Sigh.
AdvTHANKSance!
Update: Well, as suspected, there are no real answers for a PCIeX8 video card solution. One option is to choose a PCIeX1 video card (still made by many manufacturers), but performance is only slightly better than PCI-based solutions. The only other real alternative is to buy a different motherboard.
Alternative MBs weren't an option in this case, as the MB was selected for the most seamless upgrade from the previous one (Tyan H2000) - so I could carry across my existing specialised PCIX controllers ($5.8k replacement/upgrade cost), CPUs ($1.9k upgrade cost), and RAM, etc. So I saved money one way, but lost it another.
I did get a Radeon X1600XT to work by first using a x16-to-x8 adapter; this worked, but it put the card too high vertically to be able to use it through the rear of the case; so I cut down the card to suit the x8 slot, and this worked (after delicately soldering the x8 card detect pin first!). But neither of those options are a real (practical) solution for anyone without good ESD protection and a very steady hand!
I've since found plenty of physical PCIeX8 controllers, but they tend to be RAID, SCSI, or network controllers. No manufacturer makes an x8 video solution. This is bizarre, as the performance difference between x8 and x16 in video controllers is almost negligible, and it costs a lot more in MB real estate and video card prices! Still, that's the free market for you.
Bottom Line : Be prepared to upgrade your motherboard (if possible), or put up with a x1 video controller, generally with no DirectX capability.
I've just installed a SuperMicro H8DME-2 MB, this has only physical PCIe x8 slots. This means PCIe x16 cards will NOT physically fit in these slots!
Can anyone recommend a currently available x8 graphics card for this configuration? Minimum specs are simply 512Mb VRAM, and at least 2 x DVI outs (analogue [VGA] outs are also fine).
PLEASE NOTE: This is NOT a physical PCIe x16 slot with only 8 lanes connected, nor is it an AGP slot. Please don't recommend any cutting, chopping, grinding, gluing, or x16 adapter cards - I'm already using an Orbit x16-x8 adapter with my old Radeon X1600 card, and it's too slow and no longer has active driver development.
I would also be interested in PCI or PCIX graphics, as long as they meet the 512Mb/2xDVI minimum specs.
I've tried to buy Jaton PCI products here in Australia, but that's like buying chooks' teeth, with only one importer and they resell only to distributors - and they haven't sold a Jaton card in nearly a year.
I do realise there's a 5-8% performance advantage to x16 as opposed to x8, but that wasn't enough (before I started seriously looking for an x8 graphics solution, that is ) to offset the 12 CPU cores and 128G supported by the MB... Sigh.
AdvTHANKSance!
Update: Well, as suspected, there are no real answers for a PCIeX8 video card solution. One option is to choose a PCIeX1 video card (still made by many manufacturers), but performance is only slightly better than PCI-based solutions. The only other real alternative is to buy a different motherboard.
Alternative MBs weren't an option in this case, as the MB was selected for the most seamless upgrade from the previous one (Tyan H2000) - so I could carry across my existing specialised PCIX controllers ($5.8k replacement/upgrade cost), CPUs ($1.9k upgrade cost), and RAM, etc. So I saved money one way, but lost it another.
I did get a Radeon X1600XT to work by first using a x16-to-x8 adapter; this worked, but it put the card too high vertically to be able to use it through the rear of the case; so I cut down the card to suit the x8 slot, and this worked (after delicately soldering the x8 card detect pin first!). But neither of those options are a real (practical) solution for anyone without good ESD protection and a very steady hand!
I've since found plenty of physical PCIeX8 controllers, but they tend to be RAID, SCSI, or network controllers. No manufacturer makes an x8 video solution. This is bizarre, as the performance difference between x8 and x16 in video controllers is almost negligible, and it costs a lot more in MB real estate and video card prices! Still, that's the free market for you.
Bottom Line : Be prepared to upgrade your motherboard (if possible), or put up with a x1 video controller, generally with no DirectX capability.